Cray did some vector machines that were globally addressed but not coherent. That’s an interesting direction. So is latency hiding. The really important thing

Cray did some vector machines that were globally addressed but not coherent. That’s an interesting direction. So is latency hiding. The really important thing is that the big ‘single machine’ you’re talking about already has numa latency problems. Sharing a chassis doesn’t actually save you from needing to tackle latency at scale.